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L. E. PARKER.

WIRE LOOP TWISTING MACHINE.

APPLICATION FILED APR.2I,-l9l9.

Patented July 26, 1921.

2 SHEETS-SHEET 1.

L. E. PARKER. WIRE LOOP TWISTING MACHINE. APPLICATION FILED APR.2I. 1919.

1,385,582, Patented July 26, 1921.

2 SHEETS-SHEET 2- avwewtoz Z164 fwu/ UNITED STATES PATENT OFFlfiE.

LUCIAN E. PARKER, 01? WADSWCRTI-I, OHIO, ASSIGNOR TO EDWIN J. YOUNG, OF WADSWOR'IH, OHIO.

WIRE-LOOP-TVTISTING MACHINE.

Specification of Letters Patent.

Patented July 26, 1921.

Application filed April 21, 1919. Serial No. 291,566.

To all whom it may concern:

' Be it known that I, LUCIAN E. PARKER, a citizen of the United States, residing at Wadsworth, in the county of Medina and Stateof Ohio, have invented a certain new and useful Improvement in Wire-Loop- Twisting Machines, of which the fOllOWlIlg is a full, clear, and exact description.

Theobject of this invention is to provide a machine for forming loops or eyes in the endsof wire to adapt such wires for use as ties or fasteners for bales, boxes, packages, and containers, and for other purposes.

The invention consists of a machine of the character just mentioned, having a rotary reciprocating looper, cooperating with a rotary reciprocating twister about which the looper bends the wire into loop form, so that the twister upon being given its motion will twist the looped end of the wire and thereby form a permanently closed loop or eye in the wire and then discharge same, as I will proceed' now to explain and finally claim.

In the accompanying drawings illustrating theinvention, in the several figures of which like parts are similarly designated, Figure 1 is a side elevation; Fig. 2 is an end elevation, and Fig. 3 is a top plan View showing one embodiment of my invention, the parts being shown in the position they will occupy when the loop is fully twisted and the machine is about to reverse. Fig. 4 is a perspective view, on a larger scale, illustrating the conjunction of the looper, twister, and wire guide. Fig.11 is a top plan view, iii-diagrammatic form, of portions of the looper and twister, indicating the mode of operation. Fig. 12 is a plan view of the product of the machine.

The machine as illustrated in the drawings,'comprises a bottom bracket or frame 1 on which is mounted a stud shaft 2, provided witha gear wheel 3, The upper part of the bracket or frame 1 has an opening 4 and a table .5 on one side thereof'and a half-bearing 6 on the other side thereof, this halfbearing receiving the spindle 7 of the loop twister, therear end of said twister spindle having a pinion 8 meshing with the gear wheel 3 and deriving rotary motion from sald gear wheel. I

An upper bracket or frame 9 has the other half 10 of a bearing to cooperate with the half-bearing 6 to form a complete bearing for the spindle 7, the said upper bracket or frame being bolted to the lower bracket or frame by bolts 11 or otherwise secured de tachably thereto. I

The upper bracket or frame 9 is provided with a vertically disposed bearing 12 in which isplaced the spindle 1 3 of the looper 14, this spindle has at its upper end a pinion 15 by which it and the looper may be rotated. The looper is provided with a roller 16 terminating preferably in a reduced roughened, knurled, or other suitably formed nlpping or clamping surface 17. This roller may be mounted to turn upon a spindle 18 held in the socket piece 19 of the looper, as by means of the set-screw 20. The roller 16 is arranged eccentrically with relation to the spindle 13, so that upon'rotatron ofthe spindle the roller will move in a circular path about the twister pin 21 whi h is mounted upon and moves with the spindle 7, sa1d twister pin 21 being located within the space 4 between the brackets or frames 1 and 9 and out of line with the loop-forming roller. k

Taking the spindle 7 of the twister as the ax s of the twister, and the spindle 18 as the axis of the looper, it will be seen that the looper and twister are arranged in planes. substantially at right angles to one another, and this results in the proper formation of the loop.

On the table 5 is arranged a combined wire guide and grip, same comprising a plate 22 having an undercut lip 23, this plate being held in position by screws 24 and suitably adjusted by means of screws 25. The undercut lip forms a hold-down passage for the wire to be looped, and is so arranged relatively to the twister pin 21 that the wire will pass to one side of said pin and be arrested by means of a vertically disposed stop or abutment 26 on the spindle 7 Twocams are used to give motion to the parts, and these cams are designated 27 and 28, respectively, same being mounted on a drive shaft 29 which has bearings in the upper part of the upper bracket or frame 9. The cam 27 is provided with a cam groove 30 which is engaged by a roller 31 on a horizontally reciprocating toothed rack 32 suitably supported in the bracket or frame and engaging the pinion 15 of the looper and having a forked end 33 which straddles the shaft 29 for support. Obviously, as the cam revolves, the cam groove 80 will so act upon the roller 31 as to cause the toothed rack 32 to reciprocate and accordingly impart to the spindle 13 a rotary reciprocating motion.

The gear wheel 3 and consequently the spindle 7 will be given a rotary reciprocating motion by means of a toothed rack 34L which has a roller 35 which travels in a cam path 36 in the cam 28, and this toothed rack 34- likewise has a forked end 37 which straddles the shaft 29. The toothed rack 34L engages a pinion 38 on the stud shaft 2 and is adapted to turn said shaft and thereby turn the gear wheel 3 which transmits its motion to the twister as already described. The toothed rack 34 may be arranged 1n suitable guideson the brackets or frames.

As indicated in Fig. 11, the wire to be provided with the loop or eye is fed into the machine under the lip 23,.past the twister pin 21 until it comes up against the abut ment 26. Rotary motion being imparted to the machine, the looper engages the inserted end of the wire. and loops it around the twister pin and clamps it" between its roller 16 and the guide 22, while thetwister spindle is turned axially and the twister pin with the looped wire held thereby is turned over so as to twist the looped end of the wire arounchthe adjacent body of the wire as shown, and then upon a reverse movement of these parts, the twister pin is righted'and the loop slips off of it. In order to facili tate the discharge of the formed logip the twister pin is made with a slabbed o portion 39.

As shown in Fig. 11, the position A of the looper represents the looper as it stands when it has rotated to a position to engage the free end of the wire, and it then moves over into the position B so as in its travel through an arc of a circle to loop such wire end about the twister pin and then clamp the deemed to'be within the spirit and scope of the invention as claimed.

What I claim 1s 1. A machine for forming loops in wires,

I having a rotary reciprocating looper, a wire the body of the wire.

2. A machine for forming loops in wires, having a rotary reciprocating looper, composed of a vertically disposed spindle provided-at one endwith an eccentrically artween itself and the guide while the twister isturning to twist the bent port on upon ranged wire-bending device, a. stationary 7 wire guide, and a rotary reciprocatin twister comprising a spindle arranged horlzontally beneath the looper and' having a twister pin arranged perpendicular to said spindle about which the looper travels in an arc of a circle to bend the wire about it and thereafter clamp it against the guide while being twisted.

3. A machine for'forming loops in Wires,

having a rotary reciprocating looper, a stationary wire guide having an undercut lip to receive a wire to be looped, and a rotary reciprocating twister, the looper and the twister being arranged in planes subs'tan tially at right angles to one another,andthe twister beingprovided with a' pin about which the looper bends the .wireand thereafter clamps such bent' portionsvbetween.

itself and the guide while the twister is turning to twist'the bent portionupon the body of the wire."

4. A machine for 'formin loops in wires, having a vertically disposed looper spindle provided with an. eccentrically arranged looper roller terminating in a clamping member, means to impart a rotary reciproeating motion to the looper spindle, a stationary wire guide with which the rollercooperates to clamp theflooped end of a wire, a horizontally arranged twister spindle located below the looper and provided with a twister pinabout which pin the end of the wire is looped by the action of the looper, and means'to impart a rotary reciprocating motion to the twister spindle.

A machine for forming loops in wires, having a vertically disposed looper spindle provided 'with an eccentrically arranged looper. roller terminating in a clamping member, means to impart a rotary reciproeating motion to the looperspindle, a'stationary wire guide with'whichtheroller cooperates to clamp-the looped'endfofa wire, a horizontally arranged twister spindle located below the looper and provided with a twister pin about which the end of the'wire is'looped by the action of the looper and having an abutment by which the inserted end of a wire to be looped is arrested"pre liminarily to the formation of the loop, and means to impart a rotary reciprocating motion to the twister spindle.

6. In a wire loop twistin machine, having a vertically arranged ooper provided with a pinion, a rack engaging said pinion, a cam for imparting reciprocating motion to said rack, a stationary -wire guide, a twister arranged beneath the looper on a 10 horizontal axis and provided with a pinion,

a toothed rack, a cam for imparting reciprocating motion to said rack, and gearing interposed between said rack and twister pinion.

In testimony whereof I have hereunto set 15 i my hand this 19th day of April A. D. 1919.

LUCIAN E. PARKER.

Witnesses:

J. A. CRUMRINE, CoRA M. YOUNG. 

